<template>
  <div class="sidebar" id="sidebar-block">
    <el-menu
      class="sidebar-el-menu"
      :default-active="onRoutes"
      :collapse="collapse"
      background-color="#409eff"
      text-color="#fff"
      active-text-color="red"
      unique-opened
      router
    >
      <template v-for="item in items">
        <template v-if="item.subs">
          <el-submenu :index="item.index" :key="item.index">
            <template slot="title">
              <div @click="menuSelect(item.index)">
                <i :class="item.icon"></i>
                <span slot="title">{{ item.title }}</span>
              </div>
            </template>
            <el-menu-item
              v-for="(subItem, i) in item.subs"
              :key="i"
              @click="menuSelect(subItem)"
              :index="subItem.index"
              >{{ subItem.title }}</el-menu-item
            >
          </el-submenu>
        </template>
        <template v-else>
          <el-menu-item :index="item.index" :key="item.index">
            <div @click="menuSelect(item.index)">
              <i :class="item.icon"></i>
              <span slot="title">{{ item.title }}</span>
            </div>
          </el-menu-item>
        </template>
      </template>
    </el-menu>
  </div>
</template>

<script>
export default {
  data() {
    return {
      collapse: false,
      loginInfo: {},
      // 显示的二级导航数组
      navArr: [],
      items: [],
    };
  },
  computed: {
    onRoutes() {
      return this.$route.path.replace("/", "");
    },
  },
  props: ["sideNav"],
  mounted() {
    this.init();
  },
  watch: {
    /**@augments 二级菜单对应的索引id
     * 切换一级导航显示对应的二级导航
     */
    sideNav() {
      this.initLoadMenu();
    },
  },
  created() {
    // 通过 Event Bus 进行组件间通信，来折叠侧边栏
    this.bus.$on("collapse", (msg) => {
      this.collapse = msg;
    });
  },
  methods: {
    /**
     * 初始化，获取用户信息
     */
    init() {
      this.loginInfo = this.$util.getLoginer();
      this.initLoadMenu();
    },
    /**
     * 加载菜单项 modtype:'6'
     */
    initLoadMenu() {
      this.items = [];
      this.$axios
        .post(
          this.httpRoot.BASEURL_UIM +
            "rest/uim/frame/frmmodel/loadmenus?loginsid=" +
            this.loginInfo.sessionId,
          {
            pid: "10000", //固定显示 this.sideNav,
            loginsid: this.loginInfo.sessionId,
            apptype: "20",
          }
        )
        .then((res) => {
          if (res.data.result == "true") {
            let rootm = res.data.resultData; //
            //加载菜单内容
            for (var i = 0; i < rootm.children.length; i++) {
              var child = rootm.children[i];
              var m1 = {
                icon: child.imgname ,
                index: child.modcode,
                title: child.modname,
                modfuncs: child.modfuncs,
                subs: [],
              };
              //
              if ("children" in child) {
                for (var j = 0; j < child.children.length; j++) {
                  var node2 = child.children[j];
                  //
                  var m2 = {
                    //icon: node2.imgname ,
                    index: node2.modcode,
                    title: node2.modname,
                    modfuncs: node2.modfuncs,
                  };
                  m1.subs.push(m2);
                }
              }
              this.items.push(m1);
            }
          } else {
            // this.$error("加载失败" +res.data.resultMessage +",错误代码:" +res.data.resultCode);
          }
        })
        .catch(function (error) {
          //this.$error(error);
        });
    },
    menuSelect(pathname) {
      if (!pathname) return;
      if (parseInt(pathname)) return;
      this.$store.dispatch("visible/cache_bgWhite", true);
      this.$router.push({
        path: "/" + pathname.index,
        query: {
          modfuncs: pathname.modfuncs,
        },
      });
    },
  },
};
</script>

<style scoped>
.sidebar {
  display: block;
  position: absolute;
  left: 0;
  /* top: 70px; */
  top: 0px;
  bottom: 0;
}

.sidebar-el-menu:not(.el-menu--collapse) {
  width: 220px;
}

.sidebar > ul {
  height: 100%;
}
</style>
